Category: Culture

PH (GENERAL): Of Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Experiments show that if a recommended medium is chosen the initial pH should cause no concern. Hort. revs. 1983-195 Read More

PH METERS: Electronic Type

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago How do they work? -- place a small amount of potting bark or tree fern in water enough to moisten the medium and the electrode or probe and test. A81-688 Read More

PH OF WATER: Appropriate

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Water can have a pH reading of from 4 to 9; the water of Gainsville FL is close to 8.5 and has been used at the University of Florida without serious problems since Ponce de Leon. A85-471 Read More

PH OF WATER: Its Effect on Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A pH of 5 or lower is satisfactory for watering if the sodium and calcium content are not too high; the facts can be found out from your city authorities; a laboratory analysis will determine if yo... Read More

PH OF WATER: How to Raise It

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago To raise the pH cf your water supply above 5.0 it is receommended to use sodium hydroxide as the basic solution. A88-35 Read More

PLASTIC BAG TREATMENT: For Rootless Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Put the potted plant in a large enough plastic bag to close off the top, place it under the bench and open it every 12 days to ensure it has not dried out; roots should form and then over a week ro... Read More

POLYGAL: Greenhouse Covering Materials

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Made with two layers of plastic with dead air space between to conserve heat by providing insulation. A87-1171 Read More

POLYSTYRENE: In Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Put it through a kitchen meat grinder if you have one, or cut it up with a knife, to produce granules or cubes and mix it 50/50 with bark for a good potting mix to achieve a non-soggy condition; a ... Read More

POT-BOUND PLANTS: Are They Necessary?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago There is a difference of opinion as to whether some pot-bound plants perform better; the Dendrobium nobile types prefer a tight root mass, but the cane-type dendrobiums can be kept in an active gro... Read More

POT HANGERS: Reaching on High

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A simple solution is to get a push-broom handle about five feet long, screw in a five-inch hook at the end. A83-491 Read More